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This post was last edited by YORK Industrial Freezing on 2018-1-24 17:20 York screw water-cooled unit YS shaft seal disassembly and inspection steps and installation methods The following are the disassembly and inspection steps: Bleed the nitrogen pressure in the compressor before disassembly. First remove the cover outside the compressor. After removal, the cover is placed on the compressor. Use a manual Allen wrench to slowly tighten the bolts on the end cover until the pressure on the spring washer is relieved. Remove the outer bolts of the shaft seal and the inner spring gasket and end cover. Use both hands to remove the outer end cover and internal spring gasket of the shaft seal. ； Put the removed bolts away for use during installation. Place the removed end cap and the spring gasket inside for later use during installation. Disassemble the static ring bushing inside the shaft seal and make preparations for receiving oil in advance. First screw the tie rod to the static ring, place the lining plate on the shaft, and twist the nuts symmetrically on both sides of the tie rod at the same time. Use the force of the liner on the shaft to slowly pull out the static ring bushing while oil flows out. Remove the static ring bushing by hand. Observe the inner and outer surfaces of the static ring bushing to see if there are any scratches and whether the O-ring is intact. If not, replace it before installation. After disassembling the stationary ring bushing, clean the rotor and the inner surface of the body with a clean soft cloth, observe whether there are any scratches on the inner surface of the rotor and housing, and remove any gaps by touching the connection between the moving ring bushing and the mileage surface. If there is no gap, there is no need to disassemble it. If there is a gap, use a special hexagonal ratchet wrench to loosen the upper positioning bolt. http://www.acsc100.com/upLoad/image/20150613/14341619955824888.jpg Remove the moving ring bushing by hand. Observe whether the inner and outer surfaces of the moving ring bushing are damaged and whether the O-ring is intact. If it is not good, replace it before installation. After disassembling the moving ring bushing, clean the rotor and the inner surface of the body with a clean soft surface, observe whether there are any problems with the inner surface of the rotor and housing, and remove or replace them immediately if any. Before installation, apply a layer of YORK "S" oil to the inner surface of the rotor and housing. Before installation, apply a layer of YORK "S" oil to the inner and outer surfaces of the moving ring bushing. Install the moving ring bushing. Assemble the moving ring bushing in place. After pressing it tightly with your hands, use a ratchet wrench to fix the positioning bolt. Before installation, apply a layer of YORK “S” oil on the inner and outer surfaces of the static ring bushing. Assemble the stationary ring bushing. Before installation, apply a layer of YORK “S” oil on the inner and outer surfaces of the moving ring bushing. Align the assembly holes and press the static ring bushing with your hands or tools. Assemble spring washers and external end caps. Use an inner hex wrench with a torque of 56FT-LB to tighten the bolts. After assembly is completed, use nitrogen to detect leaks. The leak detection pressure is 1 bar. If there is leakage, find the cause and solve it. After passing the disassembly and inspection, carefully fill in the disassembly and inspection record and put the compressor aside for use. Ensure that the shaft seal on each compressor is of high quality and reliable. pre-study * For more information on refrigeration, you can add the Kuai Anjia Industrial official account